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<!--REG30PARAB V1.0 (01-06-2026)-->
<xbrli:xbrl xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2026-04-30/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/Regulation_30_Para_B_Of_Part_A_Of_Schedule_III/2026-04-30/in-capmkt/in-capmkt-ent" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:in-capmkt-types="http://www.sebi.gov.in/xbrl/2026-04-30/in-capmkt-types" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xl="http://www.w3.org/1999/xlink"><link:schemaRef xlink:type="simple" xlink:href="in-capmkt-ent-2026-04-30.xsd"/><xbrli:context id="MainI"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/NSESymbol">ULTRACEMCO</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-10-19</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="INR"><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unit><in-capmkt:NSESymbol contextRef="MainI">ULTRACEMCO</in-capmkt:NSESymbol><in-capmkt:NameOfTheCompany contextRef="MainI">ULTRATECH CEMENT LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:ScripCode contextRef="MainI">532538</in-capmkt:ScripCode><in-capmkt:MSEISymbol contextRef="MainI">NOTLISTED</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="MainI">INE481G01011</in-capmkt:ISIN><in-capmkt:TypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="MainI">Giving of guarantees or indemnity (Sub-para 11-Para B)</in-capmkt:TypeOfEventAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:TypeOfAnnouncementAsPerRegulation30ParaBOfPartAOfScheduleIII contextRef="MainI">New</in-capmkt:TypeOfAnnouncementAsPerRegulation30ParaBOfPartAOfScheduleIII><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfTheBoardMeeting contextRef="MainI">true</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfTheBoardMeeting><in-capmkt:DateOfBoardMeeting contextRef="MainI">2026-10-19</in-capmkt:DateOfBoardMeeting><in-capmkt:StartTimeOfTheMeeting contextRef="MainI">12:00:00</in-capmkt:StartTimeOfTheMeeting><in-capmkt:EndTimeOfTheMeeting contextRef="MainI">13:40:00</in-capmkt:EndTimeOfTheMeeting><in-capmkt:DateOfReport contextRef="MainI">2026-10-19</in-capmkt:DateOfReport><in-capmkt:EventTypeOfGuaranteeOrIndemnityOrSurety contextRef="MainI">Giving guarantees</in-capmkt:EventTypeOfGuaranteeOrIndemnityOrSurety><in-capmkt:NameOfPartyForWhomGuaranteeOrIndemnityOrSuretyWasGiven contextRef="MainI">UHG Holdings IFSC Private Limited</in-capmkt:NameOfPartyForWhomGuaranteeOrIndemnityOrSuretyWasGiven><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesHaveAnyInterestInGuaranteeOrIndemnityOrSuretyTransaction contextRef="MainI">true</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesHaveAnyInterestInGuaranteeOrIndemnityOrSuretyTransaction><in-capmkt:NatureOfInterestAndDetailsThereofInGuaranteeOrIndemnityOrSuretyTransaction contextRef="MainI">Grasim Industries Limited (Promoter) holds 9% shareholding in UHG Holdings and Hindalco Industries Limited (Promoter Group) holds 50% in UHG Holdings.</in-capmkt:NatureOfInterestAndDetailsThereofInGuaranteeOrIndemnityOrSuretyTransaction><in-capmkt:WhetherTheGuaranteeOrIndemnityOrSuretyIsDoneAtArmsLength contextRef="MainI">true</in-capmkt:WhetherTheGuaranteeOrIndemnityOrSuretyIsDoneAtArmsLength><in-capmkt:SignificantTermsAndConditionsOfGuaranteeOrIndemnityOrSurety contextRef="MainI">An irrevocable and unconditional corporate guarantee up to an amount of USD 55 mn is being provided to UHG Holdings to pursue its business.</in-capmkt:SignificantTermsAndConditionsOfGuaranteeOrIndemnityOrSurety><in-capmkt:AmountOfGuaranteeOrIndemnityOrSurety contextRef="MainI" unitRef="INR" decimals="0">55000000000</in-capmkt:AmountOfGuaranteeOrIndemnityOrSurety><in-capmkt:ImpactOfGuaranteeOrIndemnityOrSuretyOnListedEntity contextRef="MainI">There is no impact on the Company, except to the extent of the amount for which the corporate guarantee will be provided. The Corporate Guarantee constitutes a contingent liability for the Company.</in-capmkt:ImpactOfGuaranteeOrIndemnityOrSuretyOnListedEntity><in-capmkt:RemarksForWebsiteDisseminationForGivingOfGuaranteesOrIndemnityOrSuretyAsPerSubPara11OfParaB contextRef="MainI">The Board has approved providing corporate guarantee up to USD 55 mn. However, the field on amount of guarantee or indemnity or surety is a mandatory field and reuqires amount to be mentioned in Rupees term.Accordingly, we have mentioned the approximate maximum converted value in Rupees.  &lt;br /&gt; 
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